Segmentation of mid-ocean ridges
摘要：
Studies of mid-ocean ridges in the Pacific and Atlantic oceans show that the volcanism that forms the oceanic crust along the spreading-plate boundaries is concentrated at regular intervals related to spreading rate. This observation and a new calculation for a Rayleigh–Taylor type of gravitational instability of a partially molten mantle region growing under spreading centres yield reasonable estimates of upper mantle viscosities.
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关键词：
Oceanic crust Ocean ridges Seafloor spreading Computations Atlantic ocean Pacific ocean Spatial distribution Segmented Rates Gravity Earth mantle Viscosity Volcanoes Tectonics Marine geology Reprints
DOI：
10.1038/317225a0
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